Apparatus for charging a horizontal coke oven with a rammed coal charge



Dec. 19, 1933. H PETSCH 1,940,562

- APPARATUS FOR CHARGING A HORIZONTAL COKE OVEN WITH A RAMMED COAL CHARGE Filed Nov. 14, 1930 4 Sheets-Sheet 1 Dec. 19, 1933. PETSCH 1,940,562

APPARATUS FOR CHARGING A HORIZONTAL COKE OVEN WITH A RAMMED COAL CHARGE Filed Nov. 14, 1930 4 S eets-Sheet 2 20 E r l 6 'Jrzlenzor Hermann /%Z@% W 4 r y.

4 SheetsSheet 5 Dec. 19, 1933. PETSCH APPARATUS FOR CHARGING A HORIZONTAL COKE OVEN WITH A RAMMED COAL CHARGE Filed Nov.

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PATENT o FIcE 1,940,562 APPARATUS FOR, CHARGING A HORIZONTAL COKE OVEN CHARGE WITH A RAMlVIED COAL Hermann Petsch, Recklingliausen, Germany, assignor to firm Carl Still, Recklinghausen, Germany Application November 14, 1930, Serial No. 495,778,

. and in GermanyNovember 16, 1929 11 Claims. (01. 202262) For charging a horizontal coke oven with a rammed coal cake, it is usual to provide a removable shield at the front end of the bottom plate carrying the cake, i. e. the end which advances into the oven chamber when the charge is inserted therein. This shield has the purpose of supporting the head of the coal cake against the stresses occurring duringits insertion. The necessary removal of this shield after the chamber has been charged affords considerable inconveniences and diificulties in working, if the removal is effected through the adjacent door opening, as was formerly always the case. Particles of thecoal are then broken off from the end of the cake and fall out of the oven and foul the seating of the door, and special arrangements must be made for consolidating the head of the cake in order to reduce these drawbacks within reasonable limits. Also, if the shield is 20 removed through the door opening, the door must be replaced subsequently, after the complete removal so that the oven chamber is open at this side during thewhole process of charging, and this leads to heat loss'by cooling and to an objectionable formation of flame and smoke.

The invention obviates all the drawbacks mentioned above and simplifies and facilitates the working by the shield being removed vertically upwards, after the insertion of the cake, through an opening in the oven roof.

Different embodiments of the invention are represented by way of example in the accompanying drawings.

Fig. 1 is aside elevation of one example showing the charged oven chamber in longitudinal vertical section. i

Fig. 2 is a front elevation at right angles to that of Fig. 1.

Fig. 3 is anelevation similar toqFig. 1 but showing a modified construction. 7

Fig. 4 is a plan corresponding to Fig. 3 of the roof of the oven battery.

Figs. 5, 6 and 7 show on a larger scale details of the upper portion of the shield. Fig. 5 is a front elevation, Fig. 6 a vertical section on the line a-b and Fig. 7 a horizontal section on the line cd of Fig. 5.

In Fig. 1 the numeral '1 denotes the oven chamber into which the coal cake 2 on the base 3 of the ramming box is inserted. The rear end of the coal cake 2 is supported by the strongly braced shield-4 and its front end by the removable end or shield 5, which is inserted by pins 6 (Figure 2) in the said base 3. The 55 shield 5 is supported by a chain '7 stretched along the surface of the coal cake 2 to the rear shield 4. The oven chamber 1 is closed on the 7 side of the shield 5 by the door 8, whichis inserted before the commencement of the charg-- ing operation directly after the coke of the preceding charge has been discharged.

In the oven roof 9 are charging openings 10 for filling in loose coal, but as .the normal charging is effected by inserting the rammed cake, .these openings are only provided as a reserve. An opening v11 is also provided in the roof for leading away the-gaseous products of distillation through the ascension pipe 12 to the. hydraulic main 13 which is placed on one side of the oven. 7

According to the invention, another opening 14 is provided at the end of the oven chamber 1 where the shield 5 is situated; this opening is vertically over the end position of the shield 5 shown in the drawing and serves for the removal of the shield upwards. The apparatus for carrying out this lifting process comprises as its main elements, a gantry or travelling crane 15 with a running track 16 extending over the whole width of the oven battery and a trolley 17 with a winding drum 18' actuated by a motor 19. The-crane 15 runs on two rails 36 on the oven roof9, parallel to the length of the battery, and is constructed to allow room for the ascension pipe 12 and hydraulic main 13 and also access to the-charging holes 10. The drum 18 of the trolley 17 serves for winding up a double rope 20 (see Fig. 2) which is guided-over freely rotatable rollers 21 mounted on the top of the trolley l'l, and at its free end carries a lifting rod 23 by a likewise mounted roller 22 fixed thereon, the eye 24 of the said rod. engaging in a hook 25 on the upper end of the shield 5. A cover 26.for the opening 14 is fastened by a bushing 27 so as to be freely displaceable on the rod 23.

A discharge pipe 28 which acts as a'chimney and can rotate about pivots 29 is fastened to the frame of the crane 15 on theside towards the opening 14, so that after the shield 5 has a been. raised, it can be placed over this opening. Inthis position, the upper end of the pipe 28 is connected to an extension pipe 30 rigid with the frame.

sure can be injected in the usual manner at each opening through nozzles 38, connected to a header 37 extending over the whole length of now lowers the rod' 23. The cover 26 displacethe battery. In this case the cover 26 on the rod 23 is unnecessary.

Figs. 5, 6 and '7 show details for holding the shield 5 by the chain '7 and for suspending it by means of the hook 25. At the upper part of the hook 25 there is an inclined portion 31 which, when the rod 23 is lowered, facilitates the insertion of the eye 24 into the hook. Belowthe root of the hook there is an opening 32 in the plate of the shield 5, into which an iron pin 33, riveted to the body of the'shield, projects. The end loop 34 of the chain 7 surrounds this pin 33. When the eye 24 of the rod 23 has been able base member 3, with the coal cake or charge 2 resting upon it and held both at its rear and front ends by the shields 4 and 5, is introduced in the usual manner into the oven chamber 1, the door Shaving been already inserted. The opening 14 is uncovered by the removal of its normal closing cover. position shown at the right end of Fig. 1, in which the rod 23 is hanging vertically over the opening 14, being prevented from rotating by the arrangement of the double rope 20. The winding drum .18, actuated by the motor 19,

able on the rod is now automatically sealed centrally upon the opening 14 by the conical formation of its lower side. Thecover 26 now ensures that therod 23 can be guided without oscillation, so that the eye 24, as the rod descends further, meets the inclined portion 31 of the hook 25 and as it descends still further engages correctly in the said hook. The winding drum 18 is now rotated in the opposite direction so as to raise the rod 23. Before the lifting of the shield 5 is commenced, the eye 24 of the rod 23 engages the end loop 34 of the chain and as the raising of the rod 23 is continued, lifts said end loop above the upper part. of the pin 33, and thereby releases the chain '7 from its coupling connection with the shield 5. As the lifting is continued the shield 5 is completely removed through the opening 14 from the oven chamber 1 and is brought into its highest position.

The chimney pipe 23 is now swung round un- I til its lower end is over the opening 14. The

pipe remains in this position until, after the ramming base 3 has been withdrawn, the oven chamber is completely closed by the insertion of the other door situated opposite to the door 8, in order that the gases, developed during the charging process, should be discharged upwards into the atmosphere without causing inconvenience. The pipe 23 is then again swung away and the opening 14 closed by its normal cover. Simultaneously with these measures the trolley 1'7, with the shield 5 suspended from it in the highest position, travels along the track 16 of the crane 15 to the opposite side of the oven until it arrives at the position 17' shown in dotted lines. The traversingmovement of the trolley 17' is effected with the shield 5 raised as shown It is seen, that the under side of the shield is raised so far that it passes not only The trolley 17 has the over the chimney pipe 28 but also over the abovesaid ascension pipe 12 and the hydraulic main 13. The cross-section of the frame of the crane 15 must obviously be constructed so as to leave a sufficient free space for the suspended shield 5 as shown by Fig. 2. In the position 17 of the trolley 17, when the shield 5 has been lowered by the winding drum 18, it can be again inserted in the coal charge box 35 of the charging machine disposed on this side. The parts are now again in the initial position for the insertion of a new charge. It is also to be noted that the shield 4 always remains connected with the movable base member 3, and that the chain 7 is rolled up on the drum 44 when the base member 3 is withdrawn from the oven. As this chain '7 is rolled up on the drum 44, and as said drum is mounted upon and withdrawn from the oven with the base member, the chain does not remain in the oven during coking.

In the modified construction shown in Figs. 3 and 4, the winding drum 18 is carried by an apparatus 39 which can travel on tracks 40, 41, and 42, provided on the oven roof, both along one side of the oven, where the shield has been removed, and also along the opposite side of the oven where it is again lowered and also from the one to the other side of the oven, as shown in Fig. 4. The connecting track 41 between the two longitudinal tracks 40 and 42 must obviously lie on the one head end of the oven battery in order that it should not obstruct thestructures on the oven roof. This construction is only adapted for an arrangement in which the hydraulic main 13 is, contrary to Fig. 1, placed in the middle portion of the oven battery, as shown in Figs. 3 and 4. An electromagnet 43 can be provided in the apparatus 39 to hold the shield 5, which shield is made of magnetic material such as magnetic iron, in its highest position, in order that on traversing the apparatus 39 it should not be set into swinging motion, the shield being again released when the new position of the apparatus has been attained. The action of the arrangement shown 120 in Figs. 3 and 4 corresponds essentially to the previously described action for the apparatus shown in Figs. 1 and 2. After the rod 23 has been lowered into the opening 14 and has engaged under the hook 25, the shield 5 is lifted 125 to the position shown in Fig. 3 and held by the magnet 43. The apparatus 39 then traverses the track 40, then the connecting track 41 and finally the track 42, so that the position 39 shown in dotted lines in Fig. 3 is attained and the shield 5 is now again lowered and inserted in the coal charge box of the charging machine.

In the last-mentioned case arrangements must be made that the rod 23 can be rotated through 180 relatively to the supporting roller 22, after the position 39 of the lifting device has been attained, in order that the rotation due to the traverse of the apparatus 39 from the one to be arranged so that one or both is or are sup 5 block or the buckstays.

The invention is not restricted to utilizing the special devices shown in Figs. 1 and 2 or Figs. 3 and 4. All otherwise constructed devices are applicable for this purpose in which the shield can be raised through the opening provided in the oven roof, moved from this side of the oven over the oven roof to the opposite side of the oven by any suitable transport means and there again inserted in the coal charge box.

What I claim is:

1. Apparatus of the character described, in combination, a horizontal coke oven having an opening in the roof and an oven chamber, a coal cake holding box including abase and a removable end, and means for removing said end a: the box through the opening in the roof.

2. Apparatus according to claim 1, comprising a chimney above the said opening in the oven.

roof, and a header with nozzles adjacent said opening.

3. Apparatus according to claim 1, comprising also means for transporting, the said end, after removal from the oven chamber, over the oven roof to the opposite side of the oven, and means for replacing it in the coal cake holding box.

4. Apparatus according to claim 1, comprising a travelling crane and trolleythereon for transporting said end, after removal from the oven chamber, to the opposite side of the oven, and a winding drum on said trolleyior raising and lowering said end.

5. Apparatus according to claim 1, comprising tracks on said oven roof lying at right angles to the oven chamber a travelling crane adapted to travel on said tracks, a trolley displaceable on said crane parallel to the oven chamber, and a winding drum on said trolley for raising and lowering said end.

6. Apparatus according to claim 1, comprising tracks on said oven roof at right angles to the oven chamber, a travelling crane adapted to travel on said tracks, a trolley displaceable on said crane parallel to the oven chamber, a winding drum on said trolley for raising and lowering said end, and a discharge pipe secured to said crane for carrying away gases escaping through the opening in the chamber root on charging said oven chamber.

7. Apparatus according to claim 1, comprising a travelling crane and a trolley thereon for transporting said end, after removal from the oven chamber, to the opposite side of the oven, a winding drum on said trolley for raising and material, means for raising and lowering the end by said winding drum, and .an'electromagnet, acting to hold said end against swinging oscillations.

8. Apparatus according to claim-1, comprising lowering said end which. is made of magnetic tracks on said oven roof at right angles to the oven chamber, a travelling crane adapted to said ,crane, parallel to the oven chamber, a

winding drumon said trolley, and means operated by said drum and comprising a pair of lifting ropes for raising and lowering said end.

9. Apparatus according to claim 1, comprising a travelling crane and trolley thereon for transporting said end, after removal from the oven chamber, to the opposite side of the oven, and

a winding drum on said trolley, a rod attachable to said end, and ropes operated by said winding ing achain attached to said end and extending horizontally, over the top of the coal cake, means for raising'and lowering said end, said means comprising a winding drum, a lifting rod, ropes operated by said Winding drum and attached to said rod, an eye on said rod, a hook on said end adapted to be engaged by said eye, and means by which said eye releases said chain from said end at the commencement of the upward movement of said lifting rod.

HERMANN PETSCH.

CERTIFICATE OF CORREETIGN.

Patent No. 1,949,562. December 19, 1933.

HERMANN PETSCI-I.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, line 37, for "sealed" read seated; page 3, line 24, claim 3, strike out the comma after "transporting"; and line 114, claim 11, strike out the comma after "horizontally"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 15th day of May, A. D. 1934.

Bryan M. Battey (Seal) Acting Commissioner of Patents 

